Peter Dinklage (HBO’s Game of Thrones) and Nicola Peltz (Transformers: Age of Extinction) are in talks to join the adaptation of the John D. MacDonald mystery thriller The Deep Blue Good-By according to The Hollywood Reporter. The movie will follow detective Travis McGee , an Afghan war vet who is seeking stolen sapphires which end up leading him to a sadistic torturer.

Christian Bale (The Dark Knight) will play McGee – who is being rewritten from the WWII veteran he was in the novel – while Rosamund Pike (Gone Girl) will play Lois Atkinson. Dinklage is up for the role of McGee’s sidekick, Meyer, while Peltz will play Cathy Kerr, a woman who hires McGee. The movie is being directed by James Mangold (The Wolverine), who previously worked with Bale on the western remake 3:10 To Yuma. Deep Blue Good-by is the first book in a series of 21 adventures starring McGee. 20th Century Fox and Leonardo DiCaprio’s Appian Way production company are hoping to turn the series into a franchise.

This is a big break for Peltz ,whose biggest role to date was in last year’s Transformers sequel. She also has a role in the upcoming movie Low-Riders. Dinklage, on the other hand, is continuing to build on the mainstream audience awareness he established as Tyrion Lannister on HBO’s Game of Thrones, and has begun starring in more features, like X-Men: Days of Future Past as well as the upcoming action/comedy Pixels.

The Deep Blue Good-By is currently in pre-production and is set to hit theaters in 2016.